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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (6996)

  • ffmpeg - caching ahead piped input as insurance while maintaining low latency and real-time output

    5 décembre 2020, par hedgehog90

    I'm piping a live transcoded stream into ffmpeg (simplified for brevity) :

    


    mpv playlist --o=- | ffmpeg -re -i - -tune zerolatency -f flv rtmp://blah.com/live

    


    The piped input usually runs above 1x encoding speed, but every now and then it can run a little slower than real-time (just a momentary 0.99x or 0.98x dip).
When this happens, the rtmp server (a popular streaming service with an audience) output will pause momentarily for a couple seconds usually.

    


    To overcome this I want ffmpeg to cache a few seconds in advance, so mpv's output (which outputs at whatever speed it's read, so potentially very fast) can supply ffmpeg with a little extra, and whenever mpv goes a little under 1x speed, there's a little insurance that ffmpeg has cached away. This should be doable while maintaining the lowest possible latency.

    


    Question is, how ?

    


  • Revision 9ac42bc15c : VP9 dynamic resizing unit test. Verify the dynamic resizer behavior for real ti

    15 septembre 2015, par jackychen

    Changed Paths :
     Modify /test/resize_test.cc



    VP9 dynamic resizing unit test.

    Verify the dynamic resizer behavior for real time, 1 pass CBR mode.
    Run at low bitrate, with resize_allowed = 1, and verify that we get
    one resize down event.

    Change-Id : Ic347be60972fa87f7d68310da2a055679788929d

  • Revision f01c769dc6 : Dynamic resize for real-time : reference scaling. Avoid scaling the references i

    10 juillet 2015, par Marco

    Changed Paths :
     Modify /vp9/encoder/vp9_encoder.c



    Dynamic resize for real-time : reference scaling.

    Avoid scaling the references if they have already been scaled.
    Change only affects 1 pass non-svc mode for now.

    Change-Id : I204f4079c026cba7adce7a7f855d072f6139ccec

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